MSUD is MSU’s BACK-TO-BACK DUAL Seal. The MSU is a simple, rotating, multi-spring, unbalanced ‘O’-ring mounted, pusher type seal for general-purpose application in chemical, petrochemical, oil & gas processing, water treatment and sewage plants, and pulp and paper mills, steel facility etc with ANSI chemical pumps.

Specific Features of MSUD
• Simple and robust, unbalance, dual seal it is a universal seal.
• The multi-springs keep even pressure of seal face, so it's stable.
• The rotating part is automatically centered based on the axis.
• The simple, rugged, and open rotating part creates turbulent flow in the fluid or buffer fluid used to resist corrosive, erosive, and viscous fluids, and removes frictional pyrexia on the seal face.
• MSUD is used for gaseous fluids, high temperature, low temperature, vacuum, slurry, high viscosity, explosive, flammable, and toxic fluids.
• MSUD's buffer should be used at a pressure 1.5~2 bar higher pressure than the suction pressure so that the pumping liquid does not flow back.

Operating Capabilities
• Temperature : -30~200℃ (depending on materials)
• Temperature : -10~150℃ (limit for shrink connection)
• Pressure : Up to 1.5 MPa
• Speed : 15m/sec
• Viscosity : Less than 300cP
• Slurry concentration : Less than 0.5w%
Materials
• Seal Face
-Silicon carbide
-Tungsten carbide
-Antimony Imp. Carbon
-Resin Imp. Carbon.
-Special Steel